基于稳态视觉诱发电位的脑-机接口实验研究  

An Experimental Research on Brain-Computer Interface Based on Steady State Visual Evoked Potential

作　　者：黄漫玲[1] 吴平东[1] 殷罡[1] 刘莹[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《北京理工大学学报》2008年第11期957-961,共5页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60674052)

摘　　要：为提取应用于脑-机接口系统的稳态视觉诱发电位信号(SSVEP),运用叠加平均与快速傅里叶变换(FFT)相结合的方法,由其频谱图上得到作为输入信号的稳态视觉诱发电位信号.通过实验确定了叠加平均次数与最佳视觉刺激颜色,并对混合闪光刺激下SSVEP的提取进行了研究.实验结果表明,该方法提取出的SSVEP信号能够反映使用者的控制意图,可应用于脑-机接口系统.For acquiring steady state visual evoked potential（SSVEP）applied to brain-computer interface system, a method combining average and FFT is proposed. Input signal are obtained by their frequency figure of SSVEP. Times of average and best color of visual stimulation are confirmed by experiments. A method of acquiring SSVEP with mixed visual stimulation is studied. Experiments showed that SSVEP can reflect the control purposes of users and can be applied to BCI system.

关 键 词：稳态视觉诱发电位 脑-机接口 脑电 

分 类 号：R318[医药卫生—生物医学工程]